Due to the recent Shelter in Place order, our office will be physically closed until at least 4/7/20. However, we will still be working on cases remotely. Therefore, any communication to our office should be conducted through email. We are not sure yet whether we will be able to access physical mail. All our emails in the office are accessed by using our first name followed by @icworkinjury.com. We assure you we are working as best we can during these uncertain times to continue to provide you the best representation possible.

Where The Injured Go To Protect Their Rights
Athena R. Costis
  • Partner Attorney


Antioch, CA






Ms. Costis grew up in the Fresno area of the California central valley. She then attended and graduated from UC Davis with high honors, earning a BA in Economics and English Literature. Ms. Costis then received her Juris Doctorate from the UC Davis School of Law. She is a Certified Specialist in Workers' Compensation.

For over 26 years Ms. Costis has been representing injured workers. Her compassion and tireless advocacy on behalf her clients are hallmarks of her law practice. She works diligently to ensure that her clients receive what they are rightfully entitled to through the workers compensation system.

Ms. Costis is a member of the California State Bar and of the Contra Costa County Bar Association. She is also an active member of the California Applicants' Attorneys Association (CAAA). Ms. Costis is active in her community as well, volunteering at various schools and youth sports organizations.

Areas Of Practice

  • Workers' Compensation 100%

Certified Legal Specialties

  • Workers' Compensation, State Bar of California, 2017

Bar Admissions

  • California, 1989
  • U.S. District Court Eastern District of California, 1990
  • California State Courts and Courts of Appeal, 1990


  • University of California at Davis School of Law, Davis, California
    • J.D., Doctor of Jurisprudence - 00/1989
  • University of California, Davis, California
    • B.A., Bachelor of Arts - 1986
    • Honors: With Honors
    • Major: Economics
    • Major: English Literature

Honors and Awards

  • Lawyer of Distinction

Professional Associations and Memberships

  • State Bar of California, Member, 2017
  • Contra Costa County Bar Association, Member
  • California Applicants’ Attorneys Association (CAAA), Member
  • Amnesty International

Ancillary Businesses

  • Mediation


  • English
  • Greek